I haven't used Nosepass simply because it's a stalling/wall Pokémon and those are boring as heck to use in-game. It's like trying to train a Chansey or a Shuckle - they're decent for competitive battling but they're awful to use as Pokémon for an in-game team. I'd be willing to give it a try to see if I'm wrong since his offensive stats aren't drastically bad, btu there are countless other Pokémon that I'd want to try before Nosepass. I caught one for Pokédex completion but that was it haha.